CN102946926B - Medicament delivery device - Google Patents
Medicament delivery device Download PDFInfo
- Publication number
- CN102946926B CN102946926B CN201180031458.8A CN201180031458A CN102946926B CN 102946926 B CN102946926 B CN 102946926B CN 201180031458 A CN201180031458 A CN 201180031458A CN 102946926 B CN102946926 B CN 102946926B
- Authority
- CN
- China
- Prior art keywords
- plunger rod
- housing
- delivery device
- spring assembly
- rotor component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
- A61M2005/2013—Having specific accessories triggering of discharging means by contact of injector with patient body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2073—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically preventing premature release, e.g. by making use of a safety lock
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
Abstract
The present invention relates to a medicament delivery device comprising a housing, which housing is arranged to accommodate a medicament container; a drive unit arranged in said housing and capable of acting on a movable stopper positioned inside said medicament container for expelling a dose of medicament, wherein said drive unit comprises an elongated plunger rod and a dual back-to-back force spring assembly operatively connected to said plunger rod such as to provide a symmetrical load on said plunger rod; a locking and release mechanism operatively connected to said drive unit and capable of releasing said drive unit upon activation, wherein the locking and release mechanism comprises a hold member operatively connected to the plunger rod, a rotator member operatively connected to the hold member, and a tubular actuation member linearly slidable in relation to the housing and operatively connected to the rotator member; where in the hold member is fixedly attached to the housing and comprises a generally tubular lock tube through which the plunger rod extends and two seats designed as half-cylinders open towards the proximal direction for housing the dual back-to-back force spring assembly, and wherein the lock tube comprises resilient locking and release means configured to interact with both the plunger rod and the rotator member.
Description
Technical field
The present invention relates to a kind of medicament delivery device, being specifically related to a kind ofly can provide the equipment of some mechanical characteristic for delivery of drug dose from driver element.
Background technology
Many medicament delivery devices have the automatic dosage conveying function conventionally consisting of driving spring, and driving spring can act on the removable stop being arranged in medicament reservoir, for drug dose is discharged by the drug conveying member such as entry needle.
Automatic delivering mechanism in medicament delivery device generally includes the compression screw drives spring acting on plunger rod, to promote plunger rod on the proximal direction at this equipment when starting.Compressed Compress Spring provides power, and this power, even as big as overcoming the so-called power of shaking off (break looseforce) of stop, discharges stop from medicament reservoir inwall; And conventionally not completely solution go compressive state in its wide-spread spring, provide power, this power is carried even as big as completing dosage, but can cause the damage of glass medicament reservoir.
In order to process this problem, the so-called constant force spring of some equipment utilizations, it is the disc spring of being made by band molded and pretension in compact winding reel.Spring is used in linear movement, mobile plunger bar on proximal direction for example, and in its whole distortion, produce almost constant power.Document US5,478,316 disclose a kind of medicament delivery device that utilizes this spring, and this spring is for drive plunger rod during carrying at dosage.In addition, be sometimes desirably in such as thering is the level of different power during the different operating that punctures and inject subsequently, but there is constant power in each operating period.
Document EP 0 953 122 discloses this spring.Although such spring is better than Compress Spring in many aspects, they still have defect.This defect is that the load on plunger rod is asymmetric, and spring also moves with it abreast in plunger rod side thus, so bending force is applied on plunger rod.Bending force can cause the destruction of plunger rod or cause the distortion of plunger rod, and it is contacted with equipment miscellaneous part, even cause friction to increase, causes plunger rod fault.
The solution of these problems is known from document US 2006/0186143A1, and wherein the load on plunger rod is symmetrical.But, still have difficulties and have much room for improvement, wherein equipment can be configured with a small amount of parts, and each parts can be realized different functions in this case.
Summary of the invention
The object of the invention is to utilize the advantage with spring fold, and avoid utilizing the defect of the known device of this class spring.
Feature by independent claims has realized this object.The preferred embodiment of the present invention is set forth in the dependent claims.
According to main aspect of the present invention, it is characterized in that, a kind of medicament delivery device comprises: housing, this housing is arranged to hold medicament reservoir; Driver element, it is arranged in described housing and can acts on removable stop, this removable stop is positioned in described medicament reservoir, be used for discharging drug dose, wherein said driver element comprises elongated plunger rod and the stressed spring assembly of two opposite type (dual back-to-back), this spring assembly is movably connected to described plunger rod, to symmetrical load is provided on described plunger rod; Locking-relieving mechanism, it is movably connected to described driver element, and can when starting, discharge described driver element, wherein locking-relieving mechanism comprises and is movably connected to the retaining member of plunger rod, is movably connected to rotor component and the tubulose of retaining member and triggers member, and tubulose triggers member and can and be movably connected to rotor component with respect to housing linear slide; Wherein, retaining member is attached to housing regularly, and comprise lock tube and two bearings of generally tubular, plunger rod extends through lock tube, and susceptor design is towards the unlimited semicircular cylinder of proximal direction, be used for holding two stressed spring assemblies of opposite type, and wherein lock tube comprises elastic locking-releasing device, elastic locking-releasing device is configured to interact with plunger rod and rotor component.
According to another aspect of the present invention, two opposite type bands have leading flank and trailing flank, and this band is molded and pretension in the reel of compact winding with outer end, and wherein each reel by frame in the corresponding bearing of retaining member, make their trailing flanks each outer end toward each other be attached to each side of transverse post, transverse post is attached to the far-end of plunger rod.
According to another aspect of the invention, elongated plunger rod is furnished with a plurality of recesses on its external peripheral surface, and wherein said recess is arranged in a row in a longitudinal direction.
According to a further aspect in the invention, plunger rod and spring assembly are arranged to move between load condition and relaxed state, under load condition, the proximal end in abutment of plunger rod is positioned the stop of far-end in medicament reservoir, and a part for band is launched and extends in parallel in each side of plunger rod; And under relaxed state, the stop of plunger rod positioned adjacent proximal end in medicament reservoir, and band is rolled.
In accordance with a further aspect of the present invention, rotor component comprises inner circumferential surface and external peripheral surface, and wherein, inner circumferential surface has inward flange and internal channel, external peripheral surface has a plurality of outer guiding pieces, and the plurality of outer guiding piece forms two paths on the opposite side of rotor component.
According to a further aspect in the invention, rotor component is arranged to rotate to off-position from latched position, in latched position, the first radially outward interaction between projection and flange impels radial elastic tongue piece radially inside, make the first radially inside protrusion engagement in the recess of plunger rod, for plunger rod and spring assembly are remained on to load condition; And in off-position, the first radially outward interaction between projection and the internal channel on rotor component inner surface impels radial elastic tongue piece radially outward, make the first radially disengaging of the recess to inner process from plunger rod, for plunger rod and spring assembly are discharged from load condition.
According to another aspect of the invention, tubulose triggers member and comprises near-end generally tubular part and two longitudinal extension arms, wherein, near-end generally tubular partly stretches out housing near-end, each longitudinal extension arm comprises in the path being arranged as on rotor component outer surface that interactional second radially to inner process, make when near-end generally tubular partly presses drug conveying position, described triggering member is shifted linearly and to far-end, impels rotor to rotate to off-position from latched position.
According to a further aspect in the invention, this equipment also comprises safety locking member, this safety locking member extends through the far-end of described housing, and there is the near-end being movably connected to described triggering member, wherein, described safety locking member can move between primary importance and the second position, in primary importance, safety locking member locks onto described triggering member, for prevent from triggering member when triggering member presses drug conveying position, is shifted linearly and to far-end; And in the second position, safety locking member, from the release of described triggering member, is shifted linearly and to far-end for allow to trigger member when triggering member presses drug conveying position.
There are some advantages in the present invention.Owing to having used the two opposite type spring assemblies that act on plunger rod, on plunger rod, obtained symmetrical loading, not as adopted bending force or the biasing force on plunger rod that act on of single spring.Therefore, advantageous feature and the feature of the spring of being made by band as above are retained, and there is no the defect of non-symmetrical load.
And, advantageously, with retaining member, come the maintenance of accessory drive and release and hold spring mechanism, because some functions can be implemented on retaining member.
In addition, also advantageously, with rotor, control function and the action of this equipment, because some functions can be implemented on the surfaces externally and internally of rotor.This means, rotor and structure thereof have been controlled some triggerings and relieving mechanism.Therefore, rotor, retaining member and driving device have formed and can easily be arranged on the power packages with fewer parts in housing.
Therefore, trigger the proximal end that member can be arranged on this equipment, when pressing delivery site, trigger member amount of initiator and carry.Therefore, this can comprise needle guard, and this needle guard extends slightly housing and surrounds entry needle.
For the safety of higher degree is provided, triggering member can be locked by safety locking member, unless locking component is operated, otherwise trigger member, can not start this equipment.This guarantees that only by extruding, triggering member cannot not inadvertently open this equipment.
From following detailed description and from accompanying drawing, these or other aspect of the present invention and advantage will become apparent.
Accompanying drawing explanation
In the ensuing detailed description of the present invention, with reference to the accompanying drawings, in the drawings:
Fig. 1 shows the perspective view of medicament delivery device, and wherein for clarity sake housing parts is removed,
Fig. 2 shows the exploded view of equipment in Fig. 1,
Fig. 3 shows the detailed view of the parts in the equipment that is included in Fig. 1, and
Fig. 4 shows the other detailed view of equipment in Fig. 1.
The specific embodiment
In this application, when using term " distal portions/far-end ", this refers to the part/end of medicament delivery device, or the part/end of its member, in the situation that using medicament delivery device, described part/end is positioned to the farthest away from patient's drug conveying position.Correspondingly, when using term " proximal part/near-end ", this refers to the part/end of medicament delivery device, or the part/end of its member, and in the situation that using medicament delivery device, described part/end is positioned to approach most patient's drug conveying position.
The present invention relates to a kind of medicament delivery device, it comprises the housing that is arranged to hold medicament reservoir, be arranged in described housing and can act on the driver element on removable stop, operability is connected to described driver element and can when starting, discharges the locking-relieving mechanism of described driver element, removable stop is positioned in described medicament reservoir for discharging drug dose, wherein said driver element comprises elongated plunger rod and the stressed spring assembly of two opposite type, this spring assembly is movably connected to described plunger rod, to symmetrical load is provided on described plunger rod.
In this application, the two stressed spring assemblies of opposite type of wording are defined as the assembly that comprises two springs being made by band, this spring has front and back, and this band is molded and pretension in the reel of compact winding with outer end, and wherein each reel by frame in being fixed to the bearing of housing, make their trailing flanks each outer end toward each other be attached to each side of transverse post, transverse post is attached to the far-end of plunger rod, as observed in Fig. 2.It should be noted that, the spring of being made by band can be constant force spring, and its power that applies over its range of movement is almost constant power, or variable force spring, and it has carried reliable variable force, increases the demand of power or minimizing power with exact matching.
Medicament delivery device illustrated in the accompanying drawings is exemplary embodiment.As observed in Fig. 1, housing 10 comprises the proximal part that is arranged to hold medicament reservoir 12, and medicament reservoir has drug conveying member 14 in its proximal end arrangement.Shown in illustrative embodiments in, drug conveying member 14 is entry needles, but should understand, also can use the drug conveying member of other types, such as blow gun part or nose part, nozzle, aerosol apparatus.It is also to be understood that, medicament reservoir can be the cartridge case with attachment arrangement, and attachment arrangement is for attached drug conveying member.
In this illustrative embodiments, elongated plunger rod 16 is arranged in housing 10, and wherein near-end contacts with the removable stop (not shown) that is positioned at described medicament reservoir 12.Plunger rod 16 is furnished with a plurality of recesses 18 on its external peripheral surface, and wherein said recess is arranged in a row in a longitudinal direction.
In this illustrative embodiments, locking-relieving mechanism comprises that the retaining member 70 that is attached to regularly housing and operability and is connected to plunger rod, rotor component 30 and the tubulose that operability is connected to retaining member trigger member 48, tubulose triggers member can be connected to rotor component with respect to housing linear slide operability, and this will be described hereinafter.
In this illustrative embodiments, retaining member 70 comprises lock tube 20 and two bearings 50 of generally tubular, and wherein, plunger rod 16 extends through lock tube, and susceptor design is towards the unlimited semicircular cylinder of proximal direction, for holding two stressed spring assemblies of opposite type.Lock tube 20 comprises elastic locking-releasing device, and elastic locking-releasing device is configured to interact with plunger rod and rotor component.Elastic locking-releasing device is the radial elastic tongue piece 22 of two relative localizations in this illustrative embodiments, and as Fig. 3, wherein each tongue piece 22 is furnished with first radially to inner process 24 and is furnished with the first projection 26 radially outward.
In this illustrative embodiments, the stressed spring assembly of two opposite types comprises two springs 52 being made by band, it has leading flank 53 and trailing flank 54, this band molded and in the reel with outer end 55 of compact winding pretension, and wherein each reel by frame in the corresponding bearing 50 of retaining member, make their trailing flanks outer end separately toward each other be attached to each side of transverse post 17, transverse post is attached to the far-end of plunger rod.In addition, plunger rod and spring assembly are arranged to move between load condition and relaxed state, under load condition, the proximal end in abutment of plunger rod is positioned the stop of far-end in medicament reservoir, and a part for band is launched and extends in parallel in each side of plunger rod; And under relaxed state, the stop of plunger rod positioned adjacent proximal end in medicament reservoir, and band is rolled.Because their trailing flanks outer end separately toward each other that makes of spring is attached to each side of transverse post 17, when plunger rod and spring assembly are shifted to relaxed state from load condition, provide the symmetrical loading on described plunger rod.
In this illustrative embodiments, rotor component 30 comprises inner circumferential surface and external peripheral surface, and wherein, inner circumferential surface has inward flange 28 and internal channel 29, external peripheral surface has a plurality of guiding pieces 34, and the plurality of guiding piece forms two paths 36 on the opposite side of rotor component.Arrive as seen in Figure 4, each path comprises the first longitudinal path part 36a, is and then the second slant path part 36b, is again the 3rd longitudinal path 36c following closely.At the near-end of the 3rd longitudinal path, also arranged the elastic tongue piece 38 that points to proximal direction, this tongue piece 38 is furnished with wedge, to form near-end, points to end face 40.In addition, rotor component is arranged to rotate to off-position from latched position, in latched position, the first radially outward interaction between projection 26 and inward flange 28 impels radial elastic tongue piece 22 radially inside, make first radially to inner process 24, to join in the recess 18 of plunger rod 16, for plunger rod and spring assembly are remained on to load condition; In off-position, the first radially outward interaction between projection 26 and the internal channel on rotor component inner surface 29 impels radial elastic tongue piece 22 radially outward, make the first radially 18 disengagings of the recess to inner process 24 from plunger rod 16, for plunger rod and spring assembly are discharged from load condition.
In this illustrative embodiments, tubulose triggers member 48 and comprises near-end generally tubular part 46 and two longitudinal extension arms 44, wherein, near-end generally tubular partly stretches out housing near-end certain distance, each longitudinal extension arm 44 comprises in the path 36 being arranged as on rotor component outer surface that interactional second radially to inner process 42, make when near-end generally tubular part 46 presses on drug conveying position, described triggering member is shifted linearly and to far-end, impels rotor to rotate to off-position from latched position.In addition, trigger member spring (not shown) and be arranged between triggering member 48 and housing 10, for promote to trigger member 48 on proximal direction.
This equipment is also provided with safety locking member 56.Safety locking member 56 extends through the far-end of described housing, and there is the near-end that operability is connected to described triggering member, wherein, described safety locking member can move between primary importance and the second position, in primary importance, safety locking member locks onto described triggering member, for prevent from triggering member when triggering member presses drug conveying position, is shifted linearly and to far-end; In the second position, safety locking member, from the release of described triggering member, is shifted linearly and to far-end for allow to trigger member when triggering member presses drug conveying position.
In this illustrative embodiments, safety locking member 56 comprises start button 58 and two longitudinally and to the arm 60 of proximal extension, wherein, start button 58 has outstanding by the far-end of the passage at housing far-end, wherein each arm comprises the 3rd radially distal face combined effect of each longitudinal extension arm 44 in radially inside projection arrangement one-tenth and triggering member 48 to inner process 62, the three at its near-end.
The expectation function of this equipment is as follows.When this equipment consigns to user, preferably, the medicament reservoir 12 that is provided with drug conveying member 14 is placed in housing, and trigger member 48, surrounds drug conveying member.
When drug dose will flow to user, it is for example the delivery site of injection site that the near-end generally tubular part 46 of triggering member 48 presses.But can prevent from triggering member 48, to far-end, move in housing because the distal face that triggers each longitudinal extension arm 44 in member 48 in abutting connection with safety locking member the corresponding the 3rd radially to inner process 62.
Therefore, first user must spin locking the start button 58 of member 56, the 3rd radially to inner process 62, move and depart from and the contacting of the distal face of each longitudinal extension arm 44 in triggering member 48 thus.Now, when the near-end generally tubular part 46 of triggering member 48 presses delivery site, second radially can act on slant path part 36b to inner process 42, and then rotor component 30 rotation one angular distances, inward flange 28 is moved depart from the first contacting of projection 26 radially outward with lock tube 20 Elastic tongue pieces 22.Then, first radially outward projection 26 move in internal channel 29, elastic tongue piece 22 is radially outward moved freely, thereby allow the first radially 18 disengagings of the recess to inner process 24 from plunger rod 16, due to the power applying from two opposite type spring assemblies, on proximal direction, promote plunger rod 16, by their sound when first radially slips over recess 18 to inner process 24, indicate this motion, and this motion causes the stop of medicament reservoir 12 to move on proximal direction, drug dose is discharged by drug conveying member 14 thus.
When having carried dosage, this end by the sound from tongue piece 22 is indicated, and this equipment is removed from dosage delivery site, promotes to trigger member 48 thus on proximal direction by triggering member spring.The near-end motion that triggers member 48 causes second radially to inner process 42, to slip over the wedge of tongue piece 38 in rotor component 30, until second radially surrounds drug conveying member 14 to inner process 42 through proximal face 40 and triggering member 48.By this, trigger that member 48 is again locked on distal direction to be prevented mobilely, and drug conveying member 14 is protected, makes when medicament delivery device is entry needle, and the personnel that operate this equipment can not be by for example needle stick injury unintentionally.
In this illustrative embodiments, medicament delivery device is disposable automatic injection device, wherein the implication of disposable automatic injector is the spring loading equipemtn that is configured to carry the not reproducible loading that packs the single dose medicine in syringe into, and wherein the implication of syringe is the medicament reservoir having as the pin of transfer member.
Should understand, embodiment above-described and illustrated in the accompanying drawings should only be considered as indefiniteness example of the present invention, and it can modify in many ways in the scope of Patent right requirement.
Claims (7)
1. a medicament delivery device, comprising:
-housing (10), described housing is arranged to hold medicament reservoir (12);
-driver element, it is arranged in described housing and can acts on removable stop, described removable stop is positioned in described medicament reservoir, be used for discharging drug dose, wherein said driver element comprises elongated plunger rod (16) and the stressed spring assembly of two opposite type, the described pair of stressed spring assembly of opposite type is movably connected to described plunger rod, to symmetrical load is provided on described plunger rod;
-locking-relieving mechanism, it is movably connected to described driver element, and can when starting, discharge described driver element, wherein said locking-relieving mechanism comprises and is movably connected to the retaining member (70) of described plunger rod, is movably connected to rotor component (30) and the tubulose of described retaining member and triggers member (48), and described tubulose triggers member and can and be movably connected to described rotor component with respect to described housing linear slide;
It is characterized in that, described retaining member (70) is attached to described housing regularly, and comprise lock tube (20) and two bearings (50) of generally tubular, described plunger rod (16) extends through described lock tube, and described susceptor design is towards the unlimited semicircular cylinder of proximal direction, be used for holding the described pair of stressed spring assembly of opposite type, and wherein said lock tube (20) comprises elastic locking-releasing device (22), described elastic locking-releasing device is configured to interact with described plunger rod and described rotor component, wherein, described elastic locking-releasing device is the radial elastic tongue piece (22) of two relative localizations, each radial elastic tongue piece has first radially to inner process (24) and first projection (26) radially outward, and wherein, described rotor component (30) comprises inner circumferential surface and external peripheral surface, described inner circumferential surface has inward flange (28) and internal channel (29), described external peripheral surface has a plurality of outer guiding pieces (34), described a plurality of outer guiding piece forms two paths (36) on the opposite side of described rotor component.
2. medicament delivery device according to claim 1, wherein, the described pair of stressed spring assembly of opposite type comprises two springs (52) of being made by band of have leading flank (53) and trailing flank (54), and described band is molded and pretension in the reel of compact winding with outer end (55), and wherein each reel by frame in the corresponding bearing (50) of described retaining member, the trailing flank that makes described spring each outer end toward each other is attached to each side of transverse post (17), and described transverse post is attached to the far-end of described plunger rod.
3. medicament delivery device according to claim 2, wherein, described plunger rod and described spring assembly are arranged to move between load condition and relaxed state, under described load condition, stop described in the proximal end in abutment of described plunger rod, described stop is positioned far-end in described medicament reservoir, and a part for described band is launched and extends in parallel in each side of described plunger rod; And under described relaxed state, described plunger rod is in abutting connection with described stop, described stop is positioned proximal end in described medicament reservoir, and described band is rolled.
4. medicament delivery device according to claim 3, wherein, described rotor component is arranged to rotate to off-position from latched position, in described latched position, the described first radially outward interaction between projection (26) and described flange (28) impels described radial elastic tongue piece (22) radially inside, make described first radially to inner process (24), to join in the recess (18) of described plunger rod (16), for described plunger rod and described spring assembly are remained on to described load condition, and in described off-position, the described first radially outward interaction between projection (26) and the described internal channel (29) on described rotor component inner surface impels described radial elastic tongue piece (22) radially outward, make the described first radially disengaging of the recess (18) to inner process (24) from described plunger rod (16), for described plunger rod and described spring assembly are discharged from described load condition.
5. medicament delivery device according to claim 4, wherein, described tubulose triggers member (48) and comprises near-end generally tubular part (46) and two longitudinal extension arms (44), described near-end generally tubular partly stretches out the near-end of described housing, wherein, each in described longitudinal extension arm (44) comprises in the described path (36) being arranged as on described rotor component outer surface that interactional second radially to inner process (42), make when described near-end generally tubular part (46) presses on drug conveying position, described triggering member is shifted linearly and to far-end, impel described rotor to rotate to described off-position from described latched position.
6. medicament delivery device according to claim 5, wherein, described equipment also comprises safety locking member (56), described safety locking member extends through the far-end of described housing and has the near-end being movably connected to described triggering member, wherein, described safety locking member can move between primary importance and the second position, in described primary importance, described safety locking member locks onto described triggering member, for preventing that when described triggering member presses described drug conveying position described triggering member is shifted linearly and to far-end; And in the described second position, described safety locking member is from the release of described triggering member, for allowing described triggering member to be shifted linearly and to far-end when described triggering member presses described drug conveying position.
7. according to the medicament delivery device described in any one in claim 1-6, wherein, described equipment is disposable automatic injection device.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33225510P | 2010-05-07 | 2010-05-07 | |
| SE1050453-8 | 2010-05-07 | ||
| SE1050453 | 2010-05-07 | ||
| US61/332,255 | 2010-05-07 | ||
| PCT/SE2011/050508 WO2011139212A1 (en) | 2010-05-07 | 2011-04-27 | Medicament delivery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102946926A CN102946926A (en) | 2013-02-27 |
| CN102946926B true CN102946926B (en) | 2014-12-10 |
Family
ID=44903892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180031458.8A Expired - Fee Related CN102946926B (en) | 2010-05-07 | 2011-04-27 | Medicament delivery device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9125988B2 (en) |
| EP (1) | EP2566538B1 (en) |
| JP (1) | JP5512883B2 (en) |
| CN (1) | CN102946926B (en) |
| TW (1) | TWI446943B (en) |
| WO (1) | WO2011139212A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754778B (en) * | 2007-07-19 | 2012-04-18 | Shl集团有限责任公司 | Device for delivering a medicament |
| WO2011101379A1 (en) | 2010-02-18 | 2011-08-25 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| EP2399635A1 (en) | 2010-06-28 | 2011-12-28 | Sanofi-Aventis Deutschland GmbH | Auto-injector |
| EP2468333A1 (en) | 2010-12-21 | 2012-06-27 | Sanofi-Aventis Deutschland GmbH | Auto-injector |
| EP2468330A1 (en) | 2010-12-21 | 2012-06-27 | Sanofi-Aventis Deutschland GmbH | Auto-injector |
| USRE48593E1 (en) | 2010-12-21 | 2021-06-15 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| WO2013085453A1 (en) * | 2011-12-06 | 2013-06-13 | Shl Group Ab | Medicament delivery device |
| AU2013231466B2 (en) * | 2012-03-14 | 2016-04-21 | Shl Medical Ag | Medicament delivery device |
| AU2013231449B2 (en) * | 2012-03-16 | 2015-06-04 | Shl Medical Ag | Medicament delivery device |
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| SE539276C2 (en) * | 2013-10-30 | 2017-06-13 | Danderyds Snickeri Ab | Method and apparatus for increasing safety when removing a cannula from a syringe |
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- 2011-04-27 EP EP11777649.2A patent/EP2566538B1/en active Active
- 2011-04-27 US US13/696,368 patent/US9125988B2/en active Active
- 2011-04-27 CN CN201180031458.8A patent/CN102946926B/en not_active Expired - Fee Related
- 2011-05-05 TW TW100115675A patent/TWI446943B/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2566538A1 (en) | 2013-03-13 |
| JP5512883B2 (en) | 2014-06-04 |
| US9125988B2 (en) | 2015-09-08 |
| JP2013525061A (en) | 2013-06-20 |
| TW201141568A (en) | 2011-12-01 |
| AU2011249098A1 (en) | 2012-11-15 |
| WO2011139212A1 (en) | 2011-11-10 |
| EP2566538B1 (en) | 2020-03-18 |
| CN102946926A (en) | 2013-02-27 |
| US20130053790A1 (en) | 2013-02-28 |
| EP2566538A4 (en) | 2017-11-29 |
| TWI446943B (en) | 2014-08-01 |
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